TzT2 and TzT3 with Navpilot 711C

[mintregila]

I have a Tzt2 and a Tzt3 with the 711c autopilot. I also have radar and two VHF radios. I use the Tzt2 as a chartplotter and the 3 as a depth sounder and primary for the radar. The VHFs are getting position data from the 3.

I can't seem to get the 711c to get nav data from the 2. It defaults to the 3. If I boot the 2 first, it will get the 2 but the VHFs will not see position data from the 3. If I boot the 3 first, no vav data from the 2 gets passed to the 711c.

I want to be able to send use the Tzt 2 as the nav data source. Any way to lock this in so that it does not change every time it is booted?

 

[FishTech]

Do you have the TZT2 and TZT3 connected via both NMEA 2000 and Ethernet?
If you do, this is supposed to be a seamless process and it would not matter which unit is sending data because they are synchronized.
Can you post photos of your complete sensor list?

 

[mintregila]

Yes. They are connected by both nmea 2000 and ethernet. Boat is in the shop as of this morning. Will take a Pic when I get it back.

 

[mintregila]

I can tell you that when I boot everything up, the AP shows the tz3 as the nav source and if you initiate the navigation from the tz2 you get a nav data error on the AP.

 

[FishTech]

Something else you might try is to turn on your TZT2 and set it as Source 1 in the NAVpilot. Turn that off then turn on the TZT3 and set it as Source 2 in the NAVpilot. Then set the top option to both. This would allow the NAVpilot to use whichever MFD was seen as the data master that day.

 

[mintregila]

Did not work. The navpilot had a message like "new navigation source". When it booted up it just replaced the other unit on the list.

 

[Johnny Electron]

Like Fishtech suggests you can have two Nav sources/options set into the pilot and set to both. The key is the first NavNet powered up on the network becomes the talker for the entire NavNet system. If you power up the TZT3 first it will be the talker and that source can be set as option #1 in the pilot, then shutdown and power up with the TZT2 display and it should be the talker and you can set the pilot Nav option #2 with it's information. Once each have been established as Nav Sources, it shouldn't matter which you power up first but it is key to use the same TZT3 or TZT2 units you established. If you choose a different TZT3 or TZT2, they will not be recognized by the pilot as a valid source. The easy way would be just to set up the one talker and always ensure you turn that one unit ON first each and every time you power up the system. No matter which unit is used it shares the route via the network and the talker sends the data to the pilot. Of course you should ensure software is updated on all the players or you could be tripping over self induced issues. Mixing different series can have limitations and it is important that all software is at the same level.

 

[mintregila]

OK. Both units software is up to date. I tried the process you describe but when you power down the talker, the NavPilot gives an error that the nav source has changed and when you power up the other unit, it replaces the talker. It seems that no combination allows for both units to be nav data options. It is one or the other and port1 or port2.